Duplicating THE KEYS
There is nothing of the sort as a Bitcoin. The virtual money is simply a public record framework, called the blockchain, that monitors an always growing rundown of addresses, and the number of units of bitcoin are at those locations.
In the event that you own Bitcoin, what you really own is the private cryptographic key to open a particular location. The private key resembles a long series of numbers and letters. You may decide to store your key, or keys on the off chance that you have different locations, in various spots including a paper printout, a metal coin, a hard drive, an online assistance, or a tattoo on your body.
Everything strategies can be ensured with different degrees of security, yet all techniques are defenseless against burglary since the theft basically relies upon accessing the string. "I suggest making actual paper wallets utilizing an Arch Linux boot which has never been on the web," says Marak Squires, an early Bitcoin adopter who is building up a safe Bitcoin bank. "Tragically, this isn't a possibility for the vast majority. For the normal client there are nothing but bad alternatives right presently to safely store digital forms of money."
The most worthwhile assaults are completed on online administrations that store the private keys for an enormous number of clients, as Sheep Marketplace did. It appears to be these assaults are frequently done by insiders who don't need to do a lot hacking by any means. Simply duplicate the information base of private keys and you can deal with the bitcoins at every one of those locations. You, the criminal, would now be able to spend those bitcoins at whatever point you need, as long as the proprietor doesn't move them first.